i read a lot of mixed reviews online - some have had no issues, but say they are kinda slow, others have had issues with some cards but are happy with the replacement PQI cards they were sent and some swear they are pieces of shit and will never use them again. of course these reviews were for photography, but i would expect they handle similarly for recording gear if not worse as a lot of CF based recorders seem to be finicky with certain media.
IME you get what you pay for with these types of products, for me personally I would spend an extra 125 for something I Know will work and can rely on. Espcially if you have a lot of money invested in nice gear already. nothing worse than getting bit in the ass by faulty gear and loosing a show(s)
my .02